lubridate: Make dealing with dates a little easier

Lubridate makes it easier to work with dates
and times by providing functions to identify and parse
date-time data, extract and modify components of a
date-time (years, months, days, hours, minutes, and
seconds), perform accurate math on date-times, handle
time zones and Daylight Savings Time. Lubridate has a
consistent, memorable syntax, that makes working with
dates fun instead of frustrating.